Kilns for burning any and all sorts of clay products, glazed ware, and pottery



May 29, 1928. I 1,671,559

H. WEBSTER KILNS FOR BURNING ANY AND ALL SORTS OF CLAY PRODUCTS,

GLAZED WARE, AND POTTERY Filed Oct. 15, 1926 2 Sheets-Sheet 1 Im/en Z0 1", 71

May 29, 1928. 1,671,559

4 4 H. WEBSTER KILNS FOR BURNING ANY AND ALL SORTS OF CLAY PRODUCTS,

GLAZED WARE, AND POTTERY Filed Oct. 15, 1926 2 Sheets-She 2 rammed May 29, 192s.

HENRY wnnsriiit, or coynnrny, ENGLAND; V

nuns non BURNING ANY AND ALL- soars or CLAY rnonucrs; GLAzEn wA n,-;=Ann POTTERY.

.. Application filed October 15, 1926,'Ser ial No, 141,745, and in'GreatB'rit-ainflannel- 17 21925.

Thisin ention relates to kilns for, burns :ing clay products either glazed or unglazed, and particularlyrelates'to continuous burneing of round and rectangular kilns; and it rhas for its object economy in fuel and" I "labour and aimore'rieficient heat treatment or burning of the clay products; According to :the present improvements, ia plurality ofi'kilns are so connected, to-i D agether by fines-that the gases ofxocombustio n fronuanyuone kiln may be passed to any i mother kiln or kilns, or whereby anyone kiln rrrnay. be used independently of; the others.

kiln taken at fnal flues.

Ishown, six ;kilns* in each,-ser'ies it is to be In' other wordswthe kilns are so connected.

I l that'the draught or 'flow'of, heat is under. *:C0 1Ilpl6t8 iOOIltI0lCEIOIIIJOIIQ kiln or ikilns toany. "other kiln or kilns, andxthere may be either an up draught or a down draught in i' -any-- of the kilns; Waste heat I may be right angles to theklongi tudh Referring "to the; general arrangernent shown in Figure 1-, the varifllljsqkilns, for convenience of I-reference are,numbered 1, J 2, 3, 4, 5,etc. and although therei are as understood that there; may be any edesired 7 number of kilns in each seriesand any desired number of series; q; I f --;Z ,The; series of =-;kilns;{ areapreferably arranged, as shown,- in PELIaHE/LIOWS. i

' In the arrangement-shown,- [the may pass from the trarlsverse flue a into; kiln No. 1, up the annular flue J2; and over thebag walls 0,. and adowm through the floor d of the kiln tothe transyersefiue a}; on the'jc other side of the kiln. Similar-transverse 29 passed from-anyoneikilnuor kilns or all the kilns to awaste heat; fiue'delivering to driers or for.:use for any other purpose;

The kilns are conveniently ofthe round type anda flue mayencircleithe inside of the kiln so that theqheat; may pass upthis flue-and 1 down the interior-through theufloor 0f the i a kiln to'the underground-portion of-thekiln oithe draught may be reversed to pass.

through the'floor otthe-kiln over the bag BO-wall: and down into the surrounding flue.

In order that the invention may stru'oted, inter-connectedand arranged inaccordancei'with this inventionpthe upper in series being shown in] ground floor section;

' on the line 1- 1 of Figure 2- and thelower \Thevkilns of each series ia-riel alsoi'capable of: being directly connected with each rother for receiving wastelheatwhic'hpan be'passed to driers or for any other usefulpurpose."

seriesbeing shown in section below: theij aground level on: the line 22 ofFigureQ. 1 Figure 2 and 3' are vertical sectional and i 4 outside elevationaln views 1 respectively of j l vrone of the kilns These." figures are drawn p I to a larger scale than Figure 1,-Figure 2- ;being' rtake'n on the-line '3 3' in FigureL'x Figure 4; is'a sectional viewltaken through- 1 two adjacent 'lrilns fand showing an alter-j natlve 'arrangernentin 'whl rig-era 5 is a sectional eta mane there are twoacross vthe rtransverselfiues rbeneath the kilns. The-other sides ofitheytransverse :fiues 1a, a

lines a, a -arearranged ateachaside of the other kilns, thetwo flues between eachyf kilnbeing connected at oneiside toealch'imney or smoke stack'e.

by a central longitudinali flue ripassing run into'-;a.=longitudinal fiueag pasSing along :the inside of. reachiseriesi sof kilnsj'iifl here f a ar'e-ithus two longitudinallflu'esibetween the be'clearly- 1 understood and readily carried' into practic aliefi'ect reference'is made in-further de scribing the same to; the" accompanying two series of i'kilns: and a third longitudinal flue it may be providedgbetween th e tluesg ,wAll these'fiuesfarei controlled by dampers at the junctions so that the iheat rnaybe.

controlled to pass from any one kiln or kilns y i toany'otherg kiln or' 'kilns, orbyimeans of :these dampers the fines may be so controlled that there may be' anfup -d rauglltT' gm-a downl draughtin the kilnsf-ln-the saine rway the"; i

fiuesmayf be also so controlledthat any one kiln maybe. used independentlyofany other kiln.'- Forthis purpose the wa'llsot the'flues v f at the junctions may either be eonstituted by I sliding plates orbuilt' upof refractoryibricks and 'ce'ment which cany be; *readily-; -discaused to; takeany desiredd-irectiong In th es lower'part ot I p v f mantled: as -and whenfit.is required;-to alter =thed-irection ofthe draughti Bythusopen-Q or closing any-, 'oneo-f the tour 2'- of 7 .r 'each'or anyjjunction theflue gases may be iosf; F g r l heqp and i 1 "closed walls of thejunctions are shown by dotted and full lines respectively, Thus the kilnNo. 1 maybe cooling'and the waste'heat therefrom may be delivered, as shown bythe arrows, direct from th'is kiln to the waste "heat flue passing to the dryers" or utilized foranylother purpose desired. v Kiln No. 2 may be cooling and thewaste productstherein, the draught in this case be- 5 of No. 6 and down into the annular flue 6 ing directedupwardly through the-floor cl I to the chimney e betweenkilns Nos. 5' and 6,

as indicated by the arrows. I -KilnNo. 3 maybe utilized for salt glazing ,or periodic burning, the draught in this case passing as'shown, direct to the chimney be- 'tween kilns Nos. 3' and 4c.

Kiln No. tmay be on full fire, the gases 0f" combustion passing through the flue f directly connecting kilns Nos. land 5 acrossthe two transverse flues a, a between them,

*ffthe 'flue'gases also passing up the annular flue 'b in-kiln No 5 and do wn through the floor cljthuspreheating the ware in kiln N o. 5-before passing to the chimney between f va0 kilns Nos.:'5 and 6, all as shown by the arrows.

Thekilnsat the ends of the two series of kilns are connected by a 'transverse flue a which passes on the outside of the two kilns to conveythe waste heat across from one 1 series of kilns to. the other. Thus providing an endless circle of kilns with any numberv or all in use at the same time.

' Figure 4:, there are two flues f 'f to' each kiln. rThe flue; runs ,direct from the annular flue b-ofone kiln to the annularlfluej b of the next adjacentkiln The otherfluej ."Qwhich run'sflbelow the first along thelwhole lengthbfthe-kilns, communicates withreach H of'thei-kilnsbelowthe floor. .byimeans ofa central draught holek. By this' arrange-i 5 ment'the waste'heat can bemade totake any fidesired course bysuitablymanipulatingthe -various dampers. For example, if the right the bag Waller: [and down into i I hand kiln in Figure 4 15; on fullfire theheat passes; over the bag walls 0 'and down through theperforated floor and draughtv hole is into the bottom flue ,if By closing the damper i at-theright ha'nd'sidej'of this! I flue the heat passes towards the. lefthand.

T his flowofheatmay be diverted into any;

H desired direction. 2 It'may,.for instance, pass .kilnf and pass .up' through the k and the perforated, floor of V draught hole flueb. Or, as shown, by closing the bottom flue f sbetween thekilns by means; of the damperz' and operating either'or both of the may pass into the annular flue b in. the left 'to i the. next Y controlled byfidamper'si}; Y 2.;In a plurality of kilns arrangedin par-f allelseries and inwhich the annular flue of' each kiln isfconnected by a short flue with v the next ,adjaent; kiln, the combination with a central longitudinal flue common to ell the kilns of each" series and .in damper controlled communication 'withthe Well of the kiln," over the annular hand kiln, over the'bag Walls 0 and down i through the perforated floor a? of this kiln into 'thebottom flue by way of the draught hole '74. Or, again, the heat maybe diverted into either of the transverse flues a, a? by closing the damper i? and opening the. ap- "propriate damper therefor, that is to say the waste heat can be directed to the chimney,

the central waste heat flue, or to any other a kiln either with an-u-p draught or a down draught as desired.

Precisely the same arrangement as shown" in "Figure 5, can be adopted for mufile kilns for burning terra cotta, enamelled ware, potte ry and the like goods which must not come into contact with the fire. In'this case there may be either an up draught or a down draught. In the latter case the heat from Y the furnace" passes intothe division between:

the kiln wall and the mufile over the top of the inufile m and down the vertical flue' n to the underside of the floor 05 and thence into.

sired; O'r waste heat from? other kilns may enter byway of the top flue f into the an;

the bottom longitudinal flue f whenceit may pass to the "chimney'or to other. kilns as denular flue over the top of the mufile and I down the vertical flue a into the base of the kiln whence it maypass into thebottom kiln ,and'thence tofthechimney or waste heat flue. Or again the waste heat may enter by the bottomflue and passupthe vertical flue a" over the top of the muille and down I into the annu-lar flueb and thence by way of the topfflue f? to the next or any other kiln or I to the waste flue it as desired. Inan alternative arrangement,'shown in It is to'be understood that the application i of theinvention is not confined to 'circular' rectangular or: other shapes.

ters'Patentgof'th'e United States-is,:

1."I'n a plurality vof. kilns in which the each of the short flues, of 'asecond l.ongitu;

dinal flue running alongsidejandcommon to i all the kilns-ofthe series, and transverse fluesl'passing between 1 adjacent kilns and the second'longitudinal flue: and the central lVhatiI vclaim and desire to secure by Let;v

kilns but is equallyapplicable to kilns of [05 i ldapt ed :toestablish communication between i it longitudinal. and short flues, operative com municatlon between the's'everal'fluesbeing I each kiln of each series andw'ith each of the the adjacent kilns of each series end in shortflues of each series, of a, second .londamper controlled'communication with the Q gitudinal flue running along one side of and short and central longitudinal fines and common to all the kilns of each series, a with the chimneys at one end andwithfithe i third longitudinal flue, running between the second and third longitudinal fines at thet 7 two series of kilnsQa series of chimneys a rother end. V ranged along the other side of each series of kilns, andftransverse flues, passingbetween I HENRY 

